17820957

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 30730752

約数和(自身を除く): 12909795

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 103, 107, 147, 231, 309, 321, 539, 721, 749, 1133, 1177, 1617, 2163, 2247, 3399, 3531, 5047, 5243, 7931, 8239, 11021, 15141, 15729, 23793, 24717, 33063, 55517, 57673, 77147, 121231, 166551, 173019, 231441, 363693, 540029, 848617, 1620087, 2545851, 5940319, 17820957]

約数ペア:

[(1, 17820957), (3, 5940319), (7, 2545851), (11, 1620087), (21, 848617), (33, 540029), (49, 363693), (77, 231441), (103, 173019), (107, 166551), (147, 121231), (231, 77147), (309, 57673), (321, 55517), (539, 33063), (721, 24717), (749, 23793), (1133, 15729), (1177, 15141), (1617, 11021), (2163, 8239), (2247, 7931), (3399, 5243), (3531, 5047)]